Minnehaha County property record for 121 S Main Ave, Sioux Falls, SD 57104
| Property Type | Office Building |
|---|---|
| Details | 2 ba · built 1971 |
| Lot Size | 0.122 acres (5,314 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $25,865 (2025) |
| Deeds & Mortgages | Oct 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 01-22-16-352-042-000 |
| Primary APN | 01-22-16-352-042-000 |
|---|---|
| Alternative APN |
|
| Full Baths | 2 Baths |
|---|---|
| Plumbing Fixtures | 5 Plumbing Fixtures |
| Units | 235 Units |
| Stories | 2 Stories |
| Upper Floors Area | 468 sqft |
| Basement Area | 3,300 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1971 |
|---|---|
| Effective Year Built | Effective 2001 |
| Exterior Material | Combination |
| Roof Type | Flat |
| Roof Material | Other |
| Lot Area | 5,314 sqft (0.122 acres) |
| Porch | Porch |
|---|---|
| Porch Area | 106 sqft |
| Deck Area | 692 sqft |
| Patio Area | 692 sqft |
| Total Buildings | 2 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | HVAC |
| Heating Fuel | Gas |
| Sewer | Connected |
| Account Number | 80725 |
|---|---|
| Street Address | 121 S MAIN AVE |
| City | SIOUX FALLS |
| State | SD |
| Zip | 57104-6409 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Office Building |
| Legal Description | UNITS 1A, 1B, 2 & 3 PETTENGILL MAIN CONDOMINIUMS 13 BLOCK 9 J L PHILLIPS ADDN TO CITY OF SIOUX FALLS |
| Legal Subdivision | PHILLIPS ADDN |
| Legal Block | 9 |
| Legal Lot Number | 13 |
| Jurisdiction | MINNEHAHA SD |
| Township / Civil Division | SIOUX FALLS |
| Census Block Group | 1 |
| Census Block | 1018 |
| Census Tract | 701 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Sioux Falls Downtown Historic District listed 1994 · 51 contributing resources · NRIS 94001393 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Minnehaha County records, as of July 16, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 6209 W CHEYENNE DR, SIOUX FALLS, SD 57106-1668 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | MINNEHAHA SD |
| Property Address | 121 S MAIN AVE, SIOUX FALLS, SD 57104-6409 |
| Transaction Type | Mortgage |
| Record Updated | May 12, 2026 |
| Name | Verified Name |
|---|
| Document Number | 1903MTG/534 |
|---|---|
| Date | Oct 30, 2020 |
| Book Page | 1903 MTG/534 |
| Name | PLAINS COMMERCE BANK |
|---|---|
| Type | Bank |
| Address | SIOUX FALLS, SD 57106 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 181 Months |
| Due | Nov 1, 2035 |
Source: Minnehaha County assessment roll, as of July 16, 2026
| Type | Name |
|---|---|
| State | South Dakota |
| County | Minnehaha County |
| Municipality | Sioux Falls City |
| Unified School District | Sioux Falls School District 49-5 (PK - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $25,865.00 | $1,972,500 (+9.32%) Land $75,400 Building $1,897,100 |
| 2024 | $25,865.00 (+2.73%) | $1,804,300 (+4.12%) Land $75,400 Building $1,728,900 |
| 2022 | $25,178.00 | $1,732,900 Land $69,100 Building $1,663,800 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective May 2, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 1 in force |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | SIOUX FALLS serves 216,462 people · EPA ID SD4600294 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2025 |
| Lead | 3 ppb (2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 201 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Midco Cable · Fiber in parts of the area | 2,000 / 1,000 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: Bluepeak, CenturyLink, Verizon.
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